根据搜索结果，初中英语公开课的经典开场白需结合教学内容、学生特点和课堂目标设计，以下为综合推荐：

一、通用型开场白

自我介绍与欢迎

- "Good morning/afternoon/evening, everyone! I'm [姓名] and I'm excited to be your teacher for the next few months. Let's make this a fun journey together"

- "Welcome back to our English class! Let's review what we've learned last time and move forward together"

建立师生关系

- "I hope we can be friends as well as teachers. If you have any questions, please feel free to ask"

- "Let's start by getting to know each other. Who would like to introduce themselves first？"

二、互动型开场白

游戏引入

- "Let's play a game to decide who will introduce themselves. The first person to answer correctly wins a small prize"

- "We'll have a quick 'Two Truths and a Lie' game about ourselves. Ready？ Let's go"

话题导入

- "Have you ever traveled to an English-speaking country？ Let's share some interesting stories"

- "Today, we'll learn some new words related to food. Can you guess what they are？"

三、目标导向型开场白

明确学习目标

- "In this lesson, we'll focus on [具体目标，如动词时态]。 Let's start with some examples"

- "Remember, the goal is to improve your speaking skills. Don't worry if you make mistakes"

激发学习兴趣

- "Imagine you can talk to native speakers anywhere. How cool is that？ Let's make it a reality"

- "We'll use songs and stories to make learning fun. Are you ready to dive in？"

四、注意事项

简洁流畅：

避免冗长，建议控制在1-2分钟内

适应学生：根据课堂氛围调整风格，如活泼课可用游戏，正式课可用自我介绍

文化适配：注意使用学生熟悉的表达，避免生僻词汇

总结：经典开场白需灵活设计，结合互动、目标导向和师生关系建立，无需追求单一模板。建议根据具体教学内容选择或调整上述示例。